Bag construction



Dec. 10, 1935; M. ROSENFELD BAG CONSTRUCTION' Filed July l2, 1933 2 Sheets-Sheet l I NV E N TO R t /Zw/P/cf @5m/Ffm ATTORNEY 2 Sheets-Sheet 2 dal lv/J V M m 1|- rJ n 2 5 7 2.u ON M l /i i ,H .HHHNHIMUVHH 5 man n j u 1k] 7V 2f m |.\Z f Ll Z L FL 2 U 2 C 5 f o/nY 2 UB m 2 J Dec. 10, 1935.' M. RosENFELD BAG CONSTRUCTION Filed July 12, 193s Patentedl Dec. l0, 19.35

l UNITED s'rAiiszsy PATENT ,oFFicr-J BAG CONSTRUCTION Maurice Rosenfeld, Brooklyn, N. Y. 'Application July 12, 1933, Serial No. 680,007

. r 3 Claims. (Cl. 229-84) This invention relates to a bag construction applicable more particularly to a bag having a relatively long closing flap. An object of the invention is to provide such a bag with means whereby the closing ilap' thereof may be readily held in its folded over position. g

A feature of the invention relates to a bag construction in which there is no waste of paperin the formation of the means whereby the ilap is held in closed position.

Further `featin'es andadvantages will become apparent from the following description and claims when taken in connection with the accompanying drawings in which:

' the tongues have straight sides and are cut in the upper edgeofthe flap;

Figure Gis aeview similar to Figure 5with the nap closed; 1;

Figure `7 is a section on the-line i-, Figure 6; Figure 8 is a further modication inwhich the tongues are-cut in the side edges of the ilap and in which another tongue is cut1 in the center of the top edge and is adapted to be passed through a hole in the bag walls:

Figure 9 is a. further modiucation in which the single slit is adequate to forma locking tonsue: u

Figure .10 is a further modication showingv a. front view of a bag section, the view being the reverse of that shown in Figure 1;

Figure 11 is a view similar to Figure l0 with the bottom of the bag closed; L

Figure 12 is a reverse view of the bag shown in Figure 11;

Figure 13 is a perspective view of the same type of bag;

Figure 14 is a bag'section similar to Figure 10. showing another modiiied form; F

Figure l5 is a view similar to the bottom of the bag closed;

Figure 16 is a DerSpQctive view 'of the form o1' bag shown in Figure I4; land tien shown in :ligure 1 the locking tongues sie.

Figure '14min j Figure 17 is a. portion of a web of paper'from which the blanks .forming the bag of Figures l4to16 are'cut.V y

Referring to the drawings, Flaute 1 a bag having afront wall I anda closing 2 which is a prolongation of the rear bag The bottom of the bag is closed by a iiap 3 which is a prolongation of the wall I and folds under onto the rear -wall as indicated in dotted line construction, Figure 1. 'I'he iiap 2 is l0 to be folded over onto the front wall I as indicated in Figure 2. ,Such a bag is usuallyformed from a tube and 'the bag sections are so cut that the closing iiap of a succeeding bag section is formed from the wall of apreceding section. 1S

'There is therefore no we ste of paper.J Y

To hold the ap securely. in its folded-over position without the use of special which euisineiinertheam means, I provide arrow-headed tongues I are formed by making suitable top or the lateral edges oi' the iiap. When the ap is folded over as shownin Figure 2, the

tongues Il may be passed through slits i which' Aslits may pass through one or ibo'th bag walls. The arrow-headgslrape of the to for securely locking the' flap in its 'folded-over position, the length of each slot 5 being such as es provides 25 to permit the arrow-headed tongue to` passthrough. In Figure 3;;thejapis shown as havsome purposes it` maybe more desirable to have it pass through but. one wall.

In Figure 4 the ioekmgiengue s ie entirely' within the iiap structurelwhile in the construe- .cutinto theiiapedge.

Figure 5 shows a somewhat modified construction inwhich the tongues 8 have parallel sides and are cut in the top edge of the ilap and are so located asV to vPoints. Figure 6 shows the bag constructionuof Figure 5y with the iiapin closed position and held by passing the tongues. 8 through the bag walls.

Figure' 8. shows a construction in which the tongues I0 have parallel sides as in the Figure 5 /construction but are cut into th/elateral edges of the flap. `In order to provide a ready means to carry the bag I also provide a centrally lo;-

eetea tongue n formedrbyeuiiiug'eutsin ine 5 A ap as shown,.`which'tong'ue may be passed through a hole I2 which is formed in both'bag walls, the holes I2 forming-a iingeil holdiby which the bag may be readily carried.

- f ing been passed throughboth bag walls butfor 30 securely heid ine nap at two The constructionpshown in Figure but one slit at each flap edge as shown at I4. Preferably the flap has diagonal edges and the slits I4 are cut at an angle to the top edge of the flap so that a locking tongue is formed and when the flap is folded over as shown in the right half of Figure 9 and the tongues passed through the slots 5 the flap is securely locked in foldedover position.

The form of bag shown in Figures to 13 differs from the previously described forms in that the tongues I8 which hold the closing flap in its closed position project beyond the flap edges. This form of construction, like the preceding forms, is likewise made without waste of paper, the parts which form the tongues for the closing flap of one bag being cut from the corresponding wall of the preceding bag. This will be clear from a consideration of Figures 10 and 11. In Figure 11 the tongues I8 which are formed on the flap 2 are cut out of the wall I5 of the bag shown in Figure 10, the result being the formation of the notches in said wall. When, however, the ap 3 is folded over on to the wall I5 as indicated in Figure I I, these notched portions are covered up by the lower flap.

The flap 2 of Figure 10 is a continuation of the wall I5 and is adapted to be folded over onto the under wall which is indicated at I, Figure 1, the latter figure being the reverse of Figure 10.

.When the flap 2 is so folded the tongues I8 are adapted to be inserted through slits 2l. These slits may be formed in one Wall only or in both walls. There'may be a pair of slits for each tongue or a single slit therefor. Whena pair .of slits are provided the tongues I8 may be passed into one slit and out-of the other, thereby more securely holding the flap in its foldedover position.

In the form shown in Figures 10 to 13 the tongues extend from the upper edge of the closing flap. In the construction shown in Figures 14 to 17, however, the tongues 22 extend laterally from the side edges of the flap 2 as shown in Figure 14. The bottom flap 3 is folded over onto the wall I5 and the upper flap is adapted to fold back on the front wall I as indicated more clearly in Figure 17. The tongues 22 are then folded back onto the wall I5 and tucked into the slits 23 in said wall to secure the upper flap in foldedover position.

It has been stated that one of the objects of the present invention is to form securing means 5 associated with the closing ilap of a bag and to do so without waste of paper in the bag formation. To accomplish this with the constructions shown in Figures 14 t0 16 I may form the bag blanks from aA strip of paper, a portion of 10 whichis shown in Figure 17; Said strip is cut at intervals so as to form the tongues 22, which result in notches being formed in the lower flap 3 as will be clearly understood by comparing Figures 14 and 17. After the blanks are cut they 15 are folded along the dotted lines, Figure 17, and pasted so as to form the bag tube section, Figure 14.

It will thus be seen that I have provided a bag structure in which the closing flap may be 20 formed with means'to secure it in folded-over position and without waste of paper in the formation of such flap-securing means.

1. A bag having upper and lower walls and a 25 closing flap, said flap having incisions inl each side edge thereof forming a plurality of tongues and narrow slits in both walls of the bag through which the tongues may be passed.

2. A bag having upper and lower walls, a closing flap which is a prolongation of one of said walls and foldable over the other wall, said flap having a slit in a side edge thereof spaced from the top of the flap and forming a tongue, and a slit in both walls of the bag so located as to be substantially coincident with the base of the tongue when the flap is in folded-over position.

3. A bag having upper and lower walls, a closing flap which is a prolongation of one of said walls and foldable over the other wall, said flap 40 having a single slit in each side edge spaced from the top edge of the flap and at an angle to said edge and forming a locking tongue and slits in both bag walls so located as to be substantially coincident with the base of the tongue when the flap is in folded-over position.

. MAURICE ROSENFELD. 

